MEMS XO with dual HCSL outputs at 100 MHz and 156.25 MHz
The DSC400-4444Q0023KE2T is a MEMS-based XO (Standard) from Microchip's DSC400 series, delivering two fixed output frequencies: 100 MHz on Output 1 and 156.25 MHz on Output 2, both in HCSL logic levels. It operates from a 2.25V to 3.6V supply, covering both 2.5V and 3.3V rails without an external regulator, and includes an enable/disable function for power management.
No official replacement or successor has been issued; the DSC400 series continues as the current-generation MEMS clock generator family from Microchip.
20-VFQFN package and board integration
Housed in a 20-VFQFN exposed-pad package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm, the DSC400-4444Q0023KE2T requires a thermal pad on the PCB for heat dissipation and mechanical stability.